* Fix compile error in Fuzzer web-ui
The error was:
```
error: expected type '?mem.Alignment', found 'comptime_int'
```
* Apply suggestions from code review
`.of` call is shorter and clearer
Co-authored-by: Alex Rønne Petersen <alex@alexrp.com>
---------
Co-authored-by: Alex Rønne Petersen <alex@alexrp.com>